Nerve: Medial pectoral nerve
Nerves of the left upper extremity. (Medial anterior thoracicvisible in upper right.)
Latin	n. pectoralis medialis
Gray's	subject #210 933
Innervates	pectoralis minor, pectoralis major
From	medial cord

The medial pectoral nerve (medial anterior thoracic) arises from the medial cord of the plexus and through it from the eighth cervical and first thoracic.

It passes behind the first part of the axillary artery, curves forward between the axillary artery and vein, and unites in front of the artery with a filament from the lateral nerve.

It then enters the deep surface of the Pectoralis minor, where it divides into a number of branches, which supply the muscle.

Two or three branches pierce the muscle and end in the Pectoralis major.

[edit] See also

• Lateral pectoral nerve

[edit] Additional images

Brachial plexus

Brachial plexus with courses of spinal nerves shown

[edit] External links

• SUNY Labs 05:st-0511
• EatonHand ner-016
• MedEd at Loyola GrossAnatomy/dissector/practical/ue/ue15.html
• Medial+pectoral+nerve at eMedicine Dictionary

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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v • d • e Nerves of upper limbs (primarily): the brachial plexus (C5-T1) (TA A14.2.03, GA 9.930) Supraclavicular root (dorsal scapular, long thoracic) · upper trunk (suprascapular, to the subclavius) Infraclavicular lateral cord lateral pectoral musculocutaneous (lateral cutaneous of forearm) median/lateral root: anterior interosseous · palmar · recurrent · common palmar digital (proper palmar digital) medial cord medial pectoral cutaneous: medial cutaneous of forearm · medial cutaneous of arm ulnar: muscular · palmar · dorsal (dorsal digital nerves) · superficial (common palmar digital, proper palmar digital) · deep median/medial root: see above posterior cord subscapular (upper, lower) · thoracodorsal axillary (superior lateral cutaneous of arm) radial: muscular · cutaneous (posterior of arm, inferior lateral of arm, posterior of forearm) · superficial (dorsal digital nerves) · deep (posterior interosseous) Other cutaneous innervation of the upper limbs